War and disease as profitable systems in modern economies

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I've been following every detail of the ongoing war which was initially between Iran and Israel and America courtesy of President Trump joined the war fighting for Israel against Iran.

People see War and disease and the average person gets sad but to some people especially the politicians that like to go to war, they know that it makes big profit.

Those defence companies reporting high profits along with the casualty figures makes me want to research the logic behind the two going together.

I finished the microwave cold rice that I had just reheated twice and started thinking, it is usual for the second time to always be a mistake. And we also have the facts to back this theory up. Capital can never be developed without that, nothing will work properly with the human body or to keep those around the human body free from something.

Prior to me trying to analyze how they are interdependent, and that was upon returning from a tour, I see that there are things a soldier will need like a hospital or medical supplies. At the moment, America can make war the excuse to raise taxes and put financial burden on the people. Besides that, a lot of business people in the medical industry will profit from the casualties of this war.

So now I'm wondering, are there some secret society creating the wars? The things that start a war are mostly obvious but what if there are people making sure war and disease never ends.